4L3A

Crystal structure of Internalin K (InlK) from Listeria monocytogenes


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.591 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of Internalin InlK from the Human Pathogen Listeria monocytogenes.

Neves, D.Job, V.Dortet, L.Cossart, P.Dessen, A.

(2013) J.Mol.Biol. 425: 4520-4529

  • DOI: 10.1016/j.jmb.2013.08.010
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Listeria monocytogenes is a human pathogen that employs a wide variety of virulence factors in order to adhere to, invade, and replicate within target cells. Internalins play key roles in processes ranging from adhesion to receptor recognition and ar ...

    Listeria monocytogenes is a human pathogen that employs a wide variety of virulence factors in order to adhere to, invade, and replicate within target cells. Internalins play key roles in processes ranging from adhesion to receptor recognition and are thus essential for infection. Recently, InlK, a surface-associated internalin, was shown to be involved in Listeria's ability to escape from autophagy by recruitment of the major vault protein (MVP) to the bacterial surface. Here, we report the structure of InlK, which harbors four domains arranged in the shape of a "bent arm". The structure supports a role for the "elbow" of InlK in partner recognition, as well as of two Ig-like pedestals intercalated by hinge regions in the projection of InlK away from the surface of the bacterium. The unusual fold and flexibility of InlK could be essential for MVP binding and concealment from recognition by molecules involved in the autophagic process.


    Organizational Affiliation

    Brazilian National Laboratory for Biosciences (LNBio), CNPEM, Campinas, São Paulo, Brazil.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Internalin K
A, B
590Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e)Mutation(s): 0 
Find proteins for Q8Y7I7 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Go to UniProtKB:  Q8Y7I7
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
K
Query on K

Download SDF File 
Download CCD File 
B
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

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Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.591 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.228 
  • Space Group: P 32 1 2
Unit Cell:
Length (Å)Angle (°)
a = 115.340α = 90.00
b = 115.340β = 90.00
c = 190.710γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXrefinement
ADSCdata collection
PHASERphasing
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2013-06-05 
  • Released Date: 2013-08-28 
  • Deposition Author(s): Neves, D.

Revision History 

  • Version 1.0: 2013-08-28
    Type: Initial release
  • Version 1.1: 2013-09-04
    Type: Database references
  • Version 1.2: 2013-11-13
    Type: Database references